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In spite of the two less than glowing reviews, I decided to go with the American Lighting xenon pucks. I needed a total of 20 pucks (five 4-packs). Do to limited quantity available here, I had to purchase several packs from another vendor. Thus, I have multiple sources to derive data. So far (2-weeks), I am pleased with the results. Granted, the bulbs may start failing, but every light worked the first time, the fixtures are no less quality than to be expected, and they were relatively easy to install. Actually, the only way it could have been easier is if I would have installed them before the cabinets went up! I spaced them at 9" on-center, and at about 18" above the countertop I have very even light distribution and to a desirable level of brightness. Although I did not take any measurements, the boss likes it (Think wife!).
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I understand that these are not very expensive items, but they simply fail at an unacceptable rate. Two out of the six I purchased have now failed. What's worse is that the failure mechanism is not repairable. I took one apart to see what went wrong, after all it was not working anyway. I found that the socket that the bulb plugs into is so poorly designed, that eventually (a few months after installation) it will fail, even if you don't touch it I mean the socket, not the bulb. This is poorly engineered garbage. Don't waste your money. If it was free, I wouldn't pay the shipping. As an aside, while they are working, the 20 watt xenon light is great for undercounter kitchen lighting, it's just the fixture from American (made in China) Lighting that blows.
August, 2009 update: I was sent two extras as replacements so I now own 8 units. Only two are still working. Much credit to the engineers at American Lighting for creating such a reliable failure mechanism.
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DON'T BUY ANYTHING THIS COMPANY MANUFACTURES. We spent hours installing two sets of these, and a month later the first bulb blew. Went back to the store ($2 each way on the subway) and bought a few bulbs. After hours of trying unsuccessly to replace the tiny bulb (could not get it into the tiney socket), the two of us gave up. Three months later the second bulb died and we tried again, to no avail. We finally just unplugged the stupid thing. The second fixture has been burning for two years with no problems. EVERY American Lighting product I have bought has been of AWFUL quality. I have tried flourescent fixtures and bulbs, and their bulbs burn out faster than incandescent!! -they should last for years, not weeks or months.
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I installed eight of these two years ago. On installation I drilled holes for recessed mounting with a hole saw. Although I am a careful workman, anyone who has used hole saws knows that they do not cut exactly on size but sometimes will be 1/16 or so over. These lights don't like that and the poor design of the retainer device makes them a loose fit in the hole. Since then I have found that the bulbs are a smaller size than the standard and thus harder to find. Further, you must find xenon bulbs, which are less common than the halogen ones, because the halogen ones burn to hot. Finally, in time the heat causes the plastic bezel to become brittle and crumble when you try to remove it to replace the bulb.
In sum, DO NOT buy plastic puck lights if you're using xenon or halogen bulbs. While plastic might be OK for LEDs, it is not OK for the hotter xenon and halogen bulbs. All metal, 12 volt, puck lights are available here on Amazon and I'm going to pull these and replace them with the all metal ones that I should have used in the first place.
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I have had these lights for 3.5 years now and they are still going strong. I flush mounted them and they look great. Everyone was using halogens with low voltage but I didn't want to deal with transformers. I would have no problem buying these again. I dont know what the bad reviews are about. If I were doing it again today I might go with one of the LED options out there, but I have no complaints with these.
